Device for disassembling and assembling vehicle chassis swing arm rubber sleeve
By designing a disassembly assembly for automotive arm rubber sleeves, changing the external force direction, the problem of difficult disassembly and assembly of rubber sleeves with protective flanges in the prior art is solved, and efficient and professional rubber sleeve replacement operations are achieved.
Patent Information
- Application Number
- CN202510016217.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-03-21
AI Technical Summary
It is difficult to effectively disassemble and assemble the automotive arm rubber sleeve with protective flanges in the prior art, resulting in inconvenient disassembly and assemble operation, especially when repairing off-road models.
By designing a disassembly assembly including a support base, a positioning assembly and a support point, the direction of the external force being subjected to the car support arm assembly is changed, and from vertical support force to lateral force is changed to ensure that the disassembly and assembly of the rubber sleeve is completed without damaging the support arm or changing the original factory data.
It realizes the replacement of rubber sleeves with protective flanges efficiently without damaging the support arm and changing the original factory data, which improves the convenience and professionalism of rubber sleeve replacement during automobile repairs.
Smart Images
Figure CN119658629A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile repair, and in particular to a device for disassembling and assembling a rubber sleeve of a chassis swing arm of a vehicle. Background Art
[0002] In the field of automotive technology, the performance of the chassis system is crucial to the overall operation and driving experience of the car. As a key component in the chassis system, the structure of the automobile arm rubber sleeve is mainly composed of the center positioning bolt hole, the shock-absorbing rubber ring, the outer wall of the rubber sleeve, and some rubber sleeves also have protective flanges. With the use of the car, its mileage increases and the age of the car increases, the shock-absorbing rubber ring of the automobile arm rubber sleeve will inevitably age, deform, crack, etc.
[0003] When the rubber sleeve shock absorber ring is damaged, it will directly cause the chassis structure of the car to become loose, which will seriously affect the passenger comfort and may also have a negative impact on the car's handling stability and driving safety. Since the rubber sleeve is a vulnerable part of the car, it is a common operation in car maintenance to improve the condition of the car chassis and enhance the car's driving safety performance by replacing the rubber sleeve in time.
[0004] At present, when replacing rubber sleeves, automobile maintenance technicians usually use hydraulic presses or screw pulling to disassemble and assemble them. In both disassembly and assembly methods, a flat base is used to support the outer wall of the arm, and then the outer wall of the rubber sleeve is pressed down by a rubber sleeve presser, and the rubber sleeve is pressed out by applying force in the opposite direction. This method can play a better applicability when facing flat rubber sleeves, and can effectively complete the disassembly and assembly of the rubber sleeve.
[0005] However, when encountering a rubber sleeve with a protective flange, the end face of the rubber sleeve flange will cover the plane of the outer wall of the support arm, causing the plane base to lose its effective support point, which in turn causes the rubber sleeve press to be unable to obtain sufficient reaction force when pressing down. Therefore, the two existing replacement methods cannot effectively disassemble and assemble the rubber sleeve with a protective flange, which brings great inconvenience to automobile maintenance work, especially for those off-road vehicles that widely use double wishbone suspension and often wade off-road and use rubber sleeves with protective flanges. This problem is more prominent.
[0006] In addition, in actual operation, there are some other methods that have been tried, such as cutting, welding, burning, etc. However, these methods have many disadvantages. During the cutting and welding process, the original arm and rubber sleeve are prone to deformation, which makes the original data unable to be guaranteed; and the burning method uses the principle of thermal expansion and contraction to make the inner wall of the arm rubber sleeve ring expand due to heat, so that the connection between the rubber sleeve and the arm changes from interference fit to clearance fit to realize the removal of the rubber sleeve, but this method will change the internal structure of the arm and the internal characteristics of the steel, and cannot meet the strict requirements of the automobile for the original data of the arm stress. Summary of the invention
[0007] In order to solve the problem of disassembling and assembling a rubber sleeve with a protective flange, the present invention provides a device for disassembling and assembling a rubber sleeve of a vehicle chassis swing arm. Through the coordinated action of a support base, a positioning assembly and a support point, the external force exerted on the automobile support arm assembly is changed from the vertical support force in the prior art to a lateral force. By changing the position of the support point and the direction of the support force, the replacement of the rubber sleeve with a protective flange is well completed without damaging the support arm and changing the original factory data.
[0008] The present invention is achieved through the following technical solutions:
[0009] A device for disassembling and assembling a rubber sleeve of a chassis swing arm for a vehicle, comprising:
[0010] A disassembly assembly, the disassembly assembly comprising a support base for accommodating the automobile arm assembly and a disassembly press head;
[0011] A positioning assembly is movably embedded between the automobile arm assembly and the inner wall surface of the support base, and a support point for supporting the automobile arm assembly is provided on a side of the support base opposite to the positioning assembly;
[0012] When the disassembly press head applies a vertical downward force to the rubber sleeve body in the automobile support arm assembly, the positioning assembly provides a lateral supporting force to the automobile support arm assembly;
[0013] The mounting assembly includes a mounting base and a mounting press head. The mounting base and the mounting press head are respectively provided with cavities matching the two ends of the outer wall of the support arm rubber sleeve ring in the automobile support arm assembly. When the mounting press head applies a vertical downward force to the rubber sleeve body, the mounting base provides vertical supporting force to the automobile support arm assembly.
[0014] In this solution, first, the support base in the disassembly assembly is used to accommodate the automobile arm assembly, providing a stable basic support for the entire disassembly operation, while the disassembly press head directly acts on the rubber sleeve body; the positioning assembly is movably embedded between the automobile arm assembly and the inner wall surface of the support base, and cooperates with the support point on the support base. When the disassembly press head applies a vertical downward force to the rubber sleeve body, the positioning assembly can provide lateral support force for the automobile arm assembly, thereby changing the mode of relying only on vertical support force in the traditional disassembly and assembly method, and effectively solving the problem that the flat base has no support point and the rubber sleeve press has no reaction force when pressing down because the flange end face of the rubber sleeve with a protective flange covers the outer wall of the arm. At the same time, the installation base and the installation press head are respectively provided with cavities matching the two ends of the outer wall of the arm rubber sleeve ring. When the installation press head applies a vertical downward force to the rubber sleeve body, the installation base can provide vertical support force for the automobile arm assembly, ensuring that the rubber sleeve is evenly stressed and accurately positioned during the installation process, thereby ensuring the stability and reliability of the installation. This structural design enables the device to accurately and efficiently complete the disassembly and assembly of the vehicle chassis swing arm rubber sleeve without damaging the support arm or changing the original factory data, greatly improving the convenience and professionalism of the rubber sleeve replacement operation during automobile maintenance.
[0015] As a further optimization solution, the automobile support arm assembly includes a support arm rubber sleeve ring located in the cavity of the support base, and the positioning assembly includes a support lining and a positioning screw;
[0016] Wherein, the support lining is an arc-shaped entity, and the inner wall diameter of the support lining is consistent with the outer wall diameter of the support arm rubber sleeve ring, and the outer wall diameter of the support lining is consistent with the inner wall diameter of the support base.
[0017] In this solution, the support lining is an arc-shaped entity and the inner wall diameter is consistent with the outer wall diameter of the support arm rubber sleeve ring, and the outer wall diameter is consistent with the inner wall diameter of the support base, so that the support lining can achieve precise matching and tight fitting between the automobile support arm assembly and the support base. During the disassembly and assembly of the rubber sleeve, when the disassembly press head applies a vertical downward force to the rubber sleeve body, the support lining can more effectively provide lateral support force for the automobile support arm assembly by virtue of its good fit with the outer wall of the support arm rubber sleeve ring and the inner wall of the support base, ensuring that when disassembling and assembling the rubber sleeve with a protective flange, the automobile support arm assembly can be stably stressed, avoiding damage to the arm or difficulty in disassembling the rubber sleeve due to uneven force or improper support, thereby further improving the stability, reliability and accuracy of the entire device for the disassembly and assembly of the rubber sleeve, and ensuring the smooth replacement of the automobile chassis swing arm rubber sleeve.
[0018] As a further optimization solution, the automobile support arm assembly also includes a support arm, and the wall surface of the support base is provided with a support groove matching the support arm, and the support groove provides a support point for the support arm.
[0019] In this solution, the automobile arm assembly includes an arm, and the support groove matching the arm is opened on the wall of the support base, providing a special support point for the arm. During the disassembly and assembly of the rubber sleeve, when the disassembly press head applies a vertical downward force to the rubber sleeve body, the support groove can ensure that the arm is stably and appropriately supported. This design prevents the arm from displacement or shaking when subjected to force, thereby ensuring the stability of the entire automobile arm assembly when disassembling and assembling the rubber sleeve. At the same time, the support groove works in coordination with other components (such as support linings, etc.) to jointly change the support mode of the traditional disassembly and assembly method, so that the device can better cope with the disassembly and assembly of rubber sleeves with protective flanges. It helps to reasonably distribute external forces and prevent damage to the arm or rubber sleeve due to excessive local force, further improving the device's ability to complete the disassembly and assembly of the rubber sleeve without damaging the arm and changing the original factory data, thereby ensuring the performance of the automobile chassis system and the efficiency of maintenance operations.
[0020] As a further optimization solution, an annular baffle is further provided on the upper end surface of the support lining, and the outer edge of the annular baffle extends toward the outer wall of the support base.
[0021] In this solution, during the rubber sleeve disassembly and assembly operation, the outer edge of the annular baffle extends toward the outer wall of the support base. Firstly, it can further enhance the positioning stability of the support lining in the support base and prevent the support lining from unnecessary movement or rotation during the force-bearing process, thereby ensuring that it always provides accurate and stable lateral support force for the automobile arm assembly. Secondly, during the rubber sleeve disassembly process, when the rubber sleeve is subjected to the vertical downward force of the disassembly press head, the arm and the support lining have a tendency to fall out downward. The outer edge of the annular baffle can play a certain blocking role on the arm and the support lining, preventing the arm and the support lining rubber sleeve from excessively moving downward and leaving the normal operating position, thereby ensuring the continuity and controllability of the disassembly process.
[0022] As a further optimization solution, a rubber sleeve fixing bolt hole is provided on the upper end surface of the rubber sleeve body, and a positioning pin matching the rubber sleeve fixing bolt hole is provided on the disassembly press head.
[0023] In this solution, during the rubber sleeve disassembly operation, when the disassembly press head applies a vertical downward force to the rubber sleeve body, the positioning pin inserted into the rubber sleeve fixing bolt hole can achieve a precise positioning function. On the one hand, it ensures that the relative position of the disassembly press head and the rubber sleeve body is accurate, so that the force can be accurately applied to the rubber sleeve body, avoiding uneven force on the rubber sleeve due to deviation in the force application point, thereby preventing additional damage to the rubber sleeve or the support arm during the disassembly process. On the other hand, this positioning method enhances the stability and operability of the entire disassembly process, so that the rubber sleeve can be smoothly removed from the support arm in a predetermined direction and manner when subjected to a downward disassembly force. While improving the disassembly efficiency, it also helps to maintain the integrity of the vehicle support arm assembly and ensures that the performance of the vehicle chassis system is not affected.
[0024] As a further optimization solution, the outer wall diameter of the disassembly press head is smaller than the inner wall diameter of the support arm rubber sleeve ring to form a clearance fit, and the outer wall length of the disassembly press head is greater than or equal to the inner wall length of the support arm rubber sleeve ring.
[0025] In this solution, the outer wall diameter of the disassembly press head is smaller than the inner wall diameter of the support arm rubber sleeve ring, so that the disassembly press head can prevent the disassembly press head from damaging the inner wall of the rubber sleeve ring when inserted into the support arm rubber sleeve ring. When disassembling the rubber sleeve, when applying force vertically downward, this clearance fit can prevent the force from being dispersed or offset during the transmission process, ensuring that the force acts evenly on the inner wall of the rubber sleeve, thereby more efficiently pushing the rubber sleeve out of the support arm. The outer wall length of the disassembly press head is greater than or equal to the inner wall length of the support arm rubber sleeve ring, which can provide more comprehensive and stable support and driving effect for the rubber sleeve. During the entire disassembly process, the longer outer wall can cover a larger area of the inner wall of the rubber sleeve, avoiding deformation or damage of the rubber sleeve due to local uneven force, further ensuring the smooth disassembly of the rubber sleeve, and also helping to maintain the original structure and performance of the support arm and the rubber sleeve, improving the reliability, stability and accuracy of the device when disassembling and assembling the chassis swing arm rubber sleeve of the vehicle, and effectively solving the problem of disassembly and assembly of the rubber sleeve with a protective flange.
[0026] As a further optimization solution, a disassembly press head flange is provided on one end of the disassembly press head away from the locating pin, and the disassembly press head flange extends toward the outer wall of the support base.
[0027] In this solution, during the rubber sleeve disassembly operation, when a vertical downward force is applied to the rubber sleeve body, the disassembly press head flange can be better connected and coordinated with external equipment (such as a press, etc.), ensuring that the force can be stably and effectively transmitted to the disassembly press head, and then act on the rubber sleeve body. Its design of extending toward the outer wall of the support base increases the stability and reliability of the connection, prevents the connection from loosening or falling off during the force application process, and ensures the continuity of the disassembly process. At the same time, the disassembly press head flange can also play an auxiliary positioning role to a certain extent, and cooperate with the positioning pin to further fix the relative position relationship between the disassembly press head and the rubber sleeve body, making the direction of the force more precise, and avoiding unnecessary damage to the rubber sleeve or the support arm due to deviation in the force application direction.
[0028] As a further optimization solution, the mounting base includes a support ring, a positioning ring and a mounting base body;
[0029] The support ring is located on the end surface of the mounting base body to form a mounting cavity, and the lower end surface of the support arm rubber sleeve ring is in contact with the support ring;
[0030] Wherein, the positioning ring is connected to the outer edge of the supporting ring and the other end of the positioning ring extends outward.
[0031] In this solution, the support ring is located on the end face of the mounting base body to form an installation cavity. When the rubber sleeve is installed, the lower end face of the support arm rubber sleeve ring contacts the support ring. The support ring can provide a stable vertical support force for the support arm rubber sleeve ring, ensuring that the rubber sleeve maintains a vertical and stable position during the installation process, and avoiding the rubber sleeve from tilting or shifting due to uneven force, thereby ensuring the accuracy of the rubber sleeve installation. The positioning ring is connected to the outer edge of the support ring and extends outward. Its function is to accurately radially position the support arm rubber sleeve ring. During the installation process, when the installation press head applies a vertical downward force to the rubber sleeve body, the positioning ring can limit the horizontal displacement of the support arm rubber sleeve ring, so that it is always in the correct installation position, preventing the rubber sleeve from being eccentric or misplaced during the pressing process. At the same time, the positioning ring and the support ring work together to enhance the support and positioning capabilities of the entire mounting base for the automotive support arm assembly, making the installation process smoother and more reliable.
[0032] As a further optimization solution, the installation press head includes a positioning cavity, and the positioning inner wall diameter of the positioning cavity is consistent with the minor diameter of the protective flange of the rubber sleeve outer wall of the rubber sleeve body.
[0033] In this solution, during the installation of the rubber sleeve, when the installation press head applies a vertical downward force to the rubber sleeve body, this dimensional consistency enables the positioning cavity to be accurately sleeved on the outer wall protection flange of the rubber sleeve, thereby achieving accurate radial positioning of the rubber sleeve. On the one hand, it ensures that the rubber sleeve maintains the correct horizontal position during the installation process, prevents the rubber sleeve from being eccentric or tilted when pressed into the support arm rubber sleeve ring, and ensures the accuracy of the installation. Secondly, the tightly fitting positioning cavity and the protective flange of the outer wall of the rubber sleeve can effectively transmit pressure, so that the force applied by the installation press head is evenly distributed on the protective flange of the outer wall of the rubber sleeve, and then the rubber sleeve is evenly pushed into the rubber sleeve ring of the support arm, avoiding damage to the rubber sleeve or the support arm due to local uneven force; thirdly, during the installation force process of the rubber sleeve, since the installation press head does not contact the rubber part of the rubber sleeve, no pressure will be applied to the rubber part, thereby not damaging the rubber sleeve; therefore, this optimized design improves the accuracy and quality of the rubber sleeve installation, helps to successfully complete the installation of the rubber sleeve without changing the original factory data, ensures the performance of the vehicle chassis system, and improves the reliability and stability of the device in the disassembly and assembly of the vehicle chassis swing arm rubber sleeve.
[0034] As a further optimization scheme, a positioning through hole is provided on the bottom wall of the positioning cavity for installing the press head. When the rubber sleeve body is pressed, the positioning through hole is concentric with the rubber sleeve fixing bolt hole provided on the upper end surface of the rubber sleeve body.
[0035] In this solution, during the installation of the rubber sleeve, when the installation jig head applies a vertical downward force to the rubber sleeve body, the positioning through hole and the rubber sleeve fixing bolt hole are concentric to achieve precise axial positioning. This ensures that the force applied by the installation jig head can be evenly transmitted along the central axis of the rubber sleeve, avoiding the rubber sleeve from being skewed or offset during the process of pressing into the support arm, thereby ensuring the accuracy of the rubber sleeve installation position. At the same time, the concentric design facilitates the subsequent bolt fixing of the rubber sleeve, so that the bolt can smoothly pass through the positioning through hole and screw into the rubber sleeve fixing bolt hole, realizing a reliable connection between the rubber sleeve and the support arm.
[0036] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0037] The present invention can change the external force on the automobile arm assembly from a vertical supporting force to a lateral force through the coordinated action of the supporting base, the positioning assembly and the supporting point in the disassembly assembly, and smoothly complete the disassembly of the rubber sleeve with a protective flange without damaging the arm and changing the original factory data. At the same time, the design of the installation assembly also ensures the stability and accuracy of the rubber sleeve during installation, and improves the installation quality. The entire device is simpler and more efficient for the replacement method of the rubber sleeve with a protective flange, which greatly improves work efficiency, while ensuring the original factory data of the arm, improving the professionalism of the repair shop, and providing a strong guarantee for the stability and improvement of the performance of the automobile chassis system. It has important application value and practical significance in the field of automobile maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:
[0039] Figure 1 It is a schematic diagram of a rubber sleeve with a protective flange;
[0040] Figure 2 It is a schematic diagram of the automobile support arm assembly;
[0041] Figure 3 It is a schematic diagram of the connection between the rubber sleeve with a protective flange and the automobile support arm assembly;
[0042] Figure 4 A schematic diagram of a support base for a disassembly assembly of the present invention;
[0043] Figure 5 A schematic diagram of a support lining of a disassembly assembly of the present invention;
[0044] Figure 6 A schematic diagram of a disassembly press head for disassembling an assembly of the present invention;
[0045] Figure 7 A schematic diagram of a mounting base of a mounting assembly of the present invention;
[0046] Figure 8 A schematic diagram of a mounting press head of a mounting assembly of the present invention;
[0047] Fig. 9 It is a schematic diagram of the use status of the support lining during the removal of the rubber sleeve;
[0048] Fig.10 A schematic diagram of the use state of the disassembly press head during the process of disassembling the rubber sleeve;
[0049] Fig.11 It is a schematic diagram of the external forces of the rubber sleeve and the disassembly component during the disassembly process of the rubber sleeve;
[0050] Fig.12 It is a schematic diagram of the internal forces of the rubber sleeve and the disassembly component during the disassembly process of the rubber sleeve;
[0051] Fig.13 This is a schematic diagram of the connection and force of the rubber sleeve during installation;
[0052] Fig.14 It is a schematic diagram of the force applied to the rubber sleeve when it is pressed into the support arm;
[0053] Fig.15 A schematic diagram of a support base for disassembling components in other embodiments of the present invention;
[0054] Fig.16 A schematic diagram of a support base for disassembling components in other embodiments of the present invention;
[0055] Fig.17 This is a schematic diagram of the front structure of a support base according to another embodiment of the present invention;
[0056] Fig.18 This is a schematic diagram of the back structure of a support base according to another embodiment of the present invention;
[0057] Fig.19 Schematic diagram of the disassembly process of another embodiment of the present invention.
[0058] Marks and corresponding parts names in the attached drawings:
[0059] 1-rubber sleeve inner rubber upper flange, 2-rubber sleeve outer wall protection flange, 3-rubber sleeve body, 4-rubber sleeve inner rubber lower flange, 5-rubber sleeve fixing bolt hole, 6-support arm rubber sleeve ring inner wall, 7-support arm rubber sleeve ring outer wall, 8-support arm rubber sleeve ring positioning hole, 9-support arm, 10-welding port, 11-support base, 12-support groove, 13-support base outer wall, 14-support lining, 15-support lining outer wall, 16-annular baffle, 17-locating pin, 18-disassembly press head, 19-disassembly press head flange, 20-support ring, 21-locating ring, 22-installation cavity, 23-installation base body, 24-crimping ring, 25-locating inner wall, 26-locating outer wall, 27-locating hole, 28-locating screw. DETAILED DESCRIPTION
[0060] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.
[0061] In the field of automobile repair technology, rubber sleeves are key vulnerable parts in the automobile chassis system. They have various structures, some of which are equipped with protective flanges. For such rubber sleeves, the existing disassembly methods face many difficulties.
[0062] Taking the common hydraulic press or screw pulling mode as an example, the traditional operation relies on the flat base to support the outer wall of the arm, and the outer wall of the rubber sleeve is pressed down by the rubber sleeve press, relying on the force in the opposite direction to achieve the removal of the rubber sleeve. Figure 1 As shown, its structure includes a rubber sleeve inner rubber upper flange 1, a rubber sleeve outer wall protection flange 2, a rubber sleeve body 3, a rubber sleeve inner rubber lower flange 4 and a rubber sleeve fixing bolt hole 5) and a vehicle support arm (such as Figure 2 As shown, the support arm rubber sleeve ring inner wall 6, the support arm rubber sleeve ring outer wall 7, the support arm rubber sleeve ring positioning hole 8, the support arm 9 and the welding port 10 are combined into Figure 3In the state shown, the end face of the protective flange 2 of the outer wall of the rubber sleeve covers the outer wall plane of the support arm 9. This situation makes it impossible for the flat base to obtain an effective support point and to establish a stable contact and support relationship with the outer wall of the support arm 9. When the rubber sleeve press is pressed down, it is difficult to overcome the connection force between the rubber sleeve and the support arm due to the lack of sufficient reaction force balance and push, and the rubber sleeve cannot be pressed out smoothly.
[0063] In addition, although other attempted methods such as cutting and welding may achieve disassembly, the original arm and rubber sleeve are prone to deformation during the process. Cutting directly destroys the structural integrity. The high temperature and stress of welding cause the components to produce irreversible deformation, resulting in the inability to guarantee the original data, changing the strict size and performance requirements of the automobile arm and rubber sleeve during design and manufacturing, and affecting the overall performance of the chassis. Although the burning method uses the principle of thermal expansion and contraction to make the inner wall of the arm rubber sleeve ring expand due to heat, changing the matching relationship between the rubber sleeve and the arm to facilitate disassembly, the high temperature will change the internal structure of the arm and the characteristics of the steel, affect the metallographic structure of the steel, and change its strength, hardness, toughness and other performance indicators. It cannot meet the strict requirements of the automobile for the original data of the arm stress, so that the arm 9 may not be able to withstand normal working loads, posing a potential threat to the driving safety of the car.
[0064] Therefore, when facing the rubber sleeve with a protective flange, the existing technology has limitations in various methods, making it difficult to complete effective disassembly and assembly without damaging the arm and ensuring the original factory data. In view of this dilemma, the following technical solutions are provided:
[0065] Example 1
[0066] This embodiment 1 provides a device for disassembling and assembling a rubber sleeve of a chassis swing arm of a vehicle, such as Figure 4-Figure 8 As shown, it includes a disassembly component and an installation component. The disassembly component includes a support base 11 for accommodating the automobile support arm component and a disassembly press head 18. A positioning component is movably embedded between the automobile support arm component and the inner wall surface of the support base 11. A support point for supporting the automobile support arm component is provided on the side of the support base 11 relative to the positioning component. When the disassembly press head applies a vertical downward force to the rubber sleeve body 3 in the automobile support arm component, the positioning component provides a lateral support force to the automobile support arm component, and the installation component includes a mounting base and a mounting press head. The mounting base and the mounting press head Cavities matching the two ends of the outer wall 7 of the support arm rubber sleeve ring in the automobile support arm assembly are respectively provided. When the installation press head applies a vertical downward force to the rubber sleeve body 3, the installation base provides vertical supporting force for the automobile support arm assembly. The support point position and supporting force direction of the automobile support arm assembly are changed through the coordinated action of the support base 11, the positioning assembly and the supporting point. The replacement of the rubber sleeve with a protective flange is well completed without damaging the support arm 9 and changing the original factory data. At the same time, the design of the installation assembly also ensures the stability and accuracy of the rubber sleeve installation, thereby improving the installation quality.
[0067] Specifically, see Figure 4 As shown, the support base 11 includes a through accommodating cavity, an outer wall 13 of the support base and a specially designed support groove 12. The accommodating cavity provides a relatively stable accommodating space for the automobile arm assembly and the positioning assembly to ensure the relative position relationship of each component during the disassembly process. The outer wall 13 of the support base plays a role in protecting and supporting the overall structure, thereby enhancing the strength and stability of the support base 11. At the same time, the shape of the support groove 12 matches the shape of the arm 9, and is usually in a U-shaped through groove shape (such as Figure 4 As shown in the figure, the support arm 9 can be tightly placed on the support groove 12. When the rubber sleeve is disassembled, when the disassembly press head applies a vertical downward force to the rubber sleeve body 3, the support groove 12 can provide a stable supporting reaction force for the support arm 9 to prevent the support arm 9 from being displaced or shaken during the force application process, thereby ensuring the stability and accuracy of the entire disassembly process.
[0068] Specifically, see Figure 5 As shown, the above-mentioned positioning assembly includes a support lining 14, which is an arc-shaped entity. The inner wall diameter of the support lining 14 is consistent with the diameter of the outer wall 7 of the support arm rubber sleeve ring, so that the support lining 14 can fit tightly on the outer wall 7 of the support arm rubber sleeve ring. During the removal of the rubber sleeve, when the rubber sleeve is subjected to a downward force and tends to expand or deflect outward, the support lining can effectively limit the lateral movement of the support arm rubber sleeve ring, provide it with a stable lateral supporting force, and ensure the stability of the rubber sleeve during the removal process.
[0069] At the same time, the diameter of the outer wall 15 of the support lining is consistent with the inner wall diameter of the support base 11, ensuring that the support lining 14 can be stably embedded between the inner wall of the support base 11 and the outer wall 7 of the support arm rubber sleeve ring without shaking or displacement. In addition, an annular baffle 16 is also provided on the upper end surface of the support lining 14, and its outer edge extends toward the outer wall of the support base 11. The main functions of the annular baffle 16 are, first, to enhance the positioning stability of the support lining 14 in the support base 11, and to prevent the support lining 14 from unnecessary rotation or movement during the force-bearing process, thereby ensuring that it always provides accurate and stable lateral support force for the automobile support arm assembly; second, during the removal of the rubber sleeve, when the rubber sleeve is subjected to the vertical downward force of the removal press head 18, the support arm and the support lining have a tendency to fall out downward, and the outer edge of the annular baffle 16 can play a certain blocking role on the support arm and the support lining, preventing the support arm from excessively moving downward and leaving the normal operating position, thereby ensuring the continuity and controllability of the removal process.
[0070] Specifically, see Figure 6As shown, a positioning pin 17 is provided at the center of the disassembly press head 18, and its diameter is consistent with the diameter of the rubber sleeve fixing bolt hole 5. During the disassembly operation, the positioning pin 17 can be accurately inserted into the rubber sleeve fixing bolt hole 5 to achieve accurate alignment between the disassembly press head 18 and the rubber sleeve body 3. This not only ensures that the force can be accurately applied to the rubber sleeve body 3, avoiding uneven force on the rubber sleeve due to deviation of the force application point, but also plays a certain guiding role during the disassembly process, so that the rubber sleeve can be removed in a predetermined direction.
[0071] At the same time, the diameter of the outer wall of the disassembly press head 18 is smaller than the diameter of the inner wall 6 of the support arm rubber sleeve ring, that is, the disassembly press head 18 is clearance-matched with the inner wall 6 of the support arm rubber sleeve ring, and the length of the outer wall of the disassembly press head 18 is greater than or equal to the length of the inner wall 6 of the support arm rubber sleeve ring. This size design prevents the disassembly press head 18 from damaging the inner wall of the rubber sleeve ring when it is inserted into the support arm rubber sleeve ring, thereby ensuring effective force transmission. When force is applied vertically downward, the clearance fit can prevent the force from being dispersed or offset during the transmission process, ensuring that the force acts evenly on the inner wall of the rubber sleeve, and more efficiently pushing the rubber sleeve out of the support arm 9. At the same time, the longer outer wall can provide more comprehensive and stable support and driving effect for the rubber sleeve, avoiding deformation or damage of the rubber sleeve due to local uneven force.
[0072] In this embodiment, a disassembly jig head flange 19 is provided on the end of the disassembly jig head 18 away from the positioning pin 17. The disassembly jig head flange 19 extends toward the outer wall of the support base 11, and its function is mainly reflected in the force-bearing connection with external equipment (such as a press, etc.). During the disassembly process, the disassembly jig head flange 19 can be stably connected to the hydraulic push rod and other components of the press, and the disassembly jig head flange 19 can also increase the force-bearing area, ensuring that the externally applied pressure can be accurately transmitted to the disassembly jig head, and then act on the rubber sleeve body. In addition, the extended design of the disassembly jig head flange 19 increases the stability and reliability of the connection, prevents the connection from loosening or falling off during the force application process, and ensures the continuity of the disassembly process.
[0073] For detailed information on the installation components, see Figure 7 and Figure 8 As shown, the above-mentioned mounting base includes a support ring 20, a positioning ring 21 and a mounting base body 23 (as shown in FIG. Figure 7 As shown in the figure, the support ring 20 is located at the end surface of the mounting base body 23, and the support ring 20 and the mounting base body 23 form a mounting cavity together. When the rubber sleeve is installed, the lower end surface of the support arm rubber sleeve ring is in close contact with the support ring 20, and the support ring 20 can provide a stable vertical support force for the support arm rubber sleeve ring. This ensures that the rubber sleeve maintains a vertical and stable position during the installation process, avoids the rubber sleeve from tilting or shifting due to uneven force, and thus ensures the accuracy of the rubber sleeve installation.
[0074] The positioning ring 21 is connected to the outer edge of the support ring 20 and its other end extends outward. The inner diameter of the positioning ring 21 is consistent with the outer diameter of the outer wall 7 of the support arm rubber sleeve ring. During the installation process, when the installation press head applies a vertical downward force to the rubber sleeve body 3, the positioning ring 21 can accurately limit the horizontal displacement of the support arm rubber sleeve ring, so that it is always in the correct installation position. It prevents the rubber sleeve from being eccentric or misaligned during the pressing process, ensuring that the rubber sleeve can be accurately installed in the support arm rubber sleeve ring. At the same time, the positioning ring and the support ring work together to enhance the support and positioning capabilities of the entire mounting base for the vehicle support arm assembly, making the installation process smoother and more reliable.
[0075] For installing the press head, such as Figure 8 As shown, it includes a crimping ring 24, a positioning inner wall 25 and a positioning outer wall 26. The diameter of the positioning inner wall 25 is consistent with the minor diameter of the rubber sleeve outer wall protection flange of the rubber sleeve body 3, and the diameter of the positioning outer wall 26 is consistent with the major diameter of the rubber sleeve outer wall protection flange of the rubber sleeve body 3. During the installation of the rubber sleeve, when the installation press head applies a vertical downward force to the rubber sleeve body, the positioning inner wall 25 can be accurately sleeved on the rubber sleeve outer wall protection flange 2 to achieve accurate radial positioning of the rubber sleeve. This ensures that the rubber sleeve maintains the correct horizontal position during the installation process, prevents the rubber sleeve from being eccentric or tilted when pressed into the support arm rubber sleeve ring, and ensures the accuracy of the installation.
[0076] The crimping ring 24 overlaps and contacts with the outer wall protection flange 2 of the rubber sleeve, and its function is to effectively transmit pressure. When the installation press head is subjected to downward pressure from the hydraulic cylinder push rod, the crimping ring 24 evenly transmits the pressure to the outer wall protection flange 2 of the rubber sleeve. Since the outer wall protection flange of the rubber sleeve and the outer wall of the rubber sleeve are an integrated structure, the pressure then evenly acts on the outer wall of the rubber sleeve, pushing the rubber sleeve into the rubber sleeve ring of the support arm.
[0077] The bottom wall of the positioning cavity 25 for installing the press head is provided with a positioning through hole. When the rubber sleeve body 3 is pressed, the positioning through hole is concentric with the rubber sleeve fixing bolt hole 5 provided on the upper end surface of the rubber sleeve body 3 (such as Figure 8 As shown). Accurate axial positioning is achieved during the installation of the rubber sleeve. When the installation jig head applies downward force to the rubber sleeve, the concentric relationship between the positioning through hole and the rubber sleeve fixing bolt hole 5 ensures that the installation jig head can accurately locate the center of the rubber sleeve, so that the force can be evenly transmitted along the central axis of the rubber sleeve, avoiding the rubber sleeve from being skewed or offset during the process of pressing into the support arm, thereby ensuring the accuracy of the installation position of the rubber sleeve.
[0078] Example 2
[0079] In actual operation, the shapes and sizes of the support arms of different brands and different models are different. According to the shape of the support arms of specific models, the support grooves 12 of corresponding shapes can be processed, such as Fig.15 and Fig.16As shown, the rest of the structure is exactly the same.
[0080] Example 3
[0081] This embodiment 3 provides another device for disassembling and assembling a chassis swing arm rubber sleeve for a vehicle with respect to the technical solution of the embodiment 1 or the embodiment 2. The difference lies in the different structure of the positioning assembly. In this embodiment, as Figure 17-Figure 18 As shown, the positioning assembly includes a plurality of positioning screws 28, and positioning holes 27 matching the threads of the positioning screws 28 are opened on the wall surface of the support base 11, and the positioning holes 27 are distributed on the wall surface opposite to the support groove 12. When the automobile arm assembly is placed in the support base 11, the positioning screws 28 are screwed into the internal threads of the support base 11 to tighten the automobile arm assembly, and the end of the positioning screws 28 will provide lateral support force for the support lining or the automobile arm assembly.
[0082] Example 4
[0083] This embodiment 4 provides another device for disassembling and assembling a chassis swing arm rubber sleeve for a vehicle with respect to the technical solution of embodiment 3. The difference is that in this embodiment, Fig.19 As shown, the positioning assembly also includes a support lining 14, which is embedded between the inner wall of the support base 11 and the outer wall 7 of the support arm rubber sleeve ring, and is located on the same side as the positioning hole 27. When the automobile support arm assembly is placed in the support base 11, the positioning screw 28 is screwed into the internal thread of the support base 11 to tighten the support lining 14 and the automobile support arm assembly. The support lining 14 and the positioning screw 28 simultaneously provide lateral supporting force, so that the disassembly assembly can better complete the replacement of the rubber sleeve with the protective flange.
[0084] Example 5
[0085] This embodiment 5 provides a disassembly method for embodiment 1 or embodiment 2, such as Figure 9-12 As shown, the specific disassembly process is as follows:
[0086] First, place the support arm 9 and the rubber sleeve assembly in the support base 11, ensuring that the support arm 9 is in close contact with the support groove 12;
[0087] Next, place the support lining 14 between the outer wall 7 of the support arm rubber sleeve ring and the inner wall of the support base 11, insert the locating pin 17 at the center of the disassembly press head 18 into the rubber sleeve fixing bolt hole 5, and apply downward pressure to the disassembly press head 18 through the hydraulic push rod of the press cylinder. At this time, the support groove 12 applies a reaction force upward, causing the arm and rubber sleeve combination to tend to tilt.
[0088] Due to the action of the supporting lining 14, its inner wall gives the outer wall 7 of the support arm rubber sleeve ring a backward supporting force, and at the same time, the inner wall of the supporting base 11 gives the outer wall protective flange 2 of the rubber sleeve a forward supporting force. At this time, the rubber sleeve support arm assembly and the rubber sleeve removal tool tend to be stable.
[0089] As the hydraulic push rod of the cylinder moves downward, the rubber sleeve is gradually pressed out of the support arm, completing the disassembly work. In this process, the external force is the external force of the rubber sleeve and the rubber sleeve removal tool combination, and the sum of the forces tends to be balanced; the internal force is that when the downward pressure applied by the press head is greater than the friction between the rubber sleeve and the support arm, the rubber sleeve will slide out from the inner wall of the support arm.
[0090] like Figure 13-14 The specific installation process is as follows:
[0091] First, place the mounting base, and place the support arm on the mounting base to ensure that the support arm is firmly connected to the mounting base to avoid bias, slippage, etc. in subsequent operations.
[0092] Then, install the installation jig head, and the crimping ring 24 of the installation jig head overlaps and contacts with the outer wall protection flange 2 of the rubber sleeve. The pressure is applied downward by the hydraulic cylinder push rod. This pressure is the downward pressure of the hydraulic cylinder hydraulic push rod. At the same time, the hydraulic press generates a reaction force to resist the downward pressure. The installation jig head transmits the pressure to the outer wall protection flange 2 of the rubber sleeve. Since the outer wall protection flange 2 of the rubber sleeve and the outer wall of the rubber sleeve are an integrated structure, the pressure is then transmitted to the outer wall of the rubber sleeve. At the same time, since the installation jig head does not contact the rubber part of the rubber sleeve, it will not apply pressure to the rubber part, thereby not damaging the rubber sleeve.
[0093] As the rubber sleeve contacts the inner wall 6 of the support arm rubber sleeve ring, friction is generated between the rubber sleeve and the inner wall 6 of the support arm rubber sleeve ring. When the downward pressure is greater than the friction between the rubber sleeve and the inner wall 6 of the support arm rubber sleeve ring, the rubber sleeve moves downward into the inside of the support arm rubber sleeve ring until the rubber sleeve is completely installed in the appropriate position. At this point, the rubber sleeve installation process is completed. During the entire process, the positioning ring 21 exerts a reaction force on the automobile support arm, providing a stable support for the automobile support arm, ensuring that the installation process is safe, stable and accurate.
[0094] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A device for disassembling and assembling a rubber sleeve of a chassis swing arm of a vehicle, characterized in that: include: A disassembly assembly, the disassembly assembly comprising a support base (11) for accommodating the automobile arm assembly and a disassembly press head (18); A positioning assembly is movably embedded between the automobile arm assembly and the inner wall surface of the support base (11); a support point for supporting the automobile arm assembly is provided on a side of the support base (11) opposite to the positioning assembly; When the disassembly press head (18) applies a vertical downward force to the rubber sleeve body (3) in the automobile support arm assembly, the positioning assembly provides a lateral supporting force to the automobile support arm assembly; The mounting assembly comprises a mounting base and a mounting jig head, wherein the mounting base and the mounting jig head are respectively provided with cavities matching the two ends of the outer wall (7) of the support arm rubber sleeve ring in the automobile support arm assembly, and when the mounting jig head applies a vertical downward force to the rubber sleeve body (3), the mounting base provides vertical supporting force to the automobile support arm assembly.
2. The device for disassembling and assembling a chassis swing arm rubber sleeve of a vehicle according to claim 1, characterized in that: The automobile support arm assembly comprises a support arm rubber sleeve ring located in the cavity of the support base (11), and the positioning assembly comprises a support lining (14); The support lining (14) is an arc-shaped entity, and the inner wall diameter of the support lining (14) is consistent with the outer wall diameter of the support arm rubber sleeve ring, and the diameter of the support lining outer wall (15) of the support lining (14) is consistent with the inner wall diameter of the support base (11).
3. The device for disassembling and assembling a chassis swing arm rubber sleeve of a vehicle according to claim 2, characterized in that: The automobile support arm assembly also includes a support arm (9), and a support groove (12) matching the support arm (9) is formed on the wall surface of the support base (11), and the support groove (12) provides a support point for the support arm (9).
4. The device for disassembling and assembling a chassis swing arm rubber sleeve of a vehicle according to claim 3, characterized in that: An annular baffle (16) is also provided on the upper end surface of the supporting lining (14), and the outer edge of the annular baffle (16) extends toward the outer wall of the supporting base (11).
5. The device for disassembling and assembling a chassis swing arm rubber sleeve of a vehicle according to claim 3, characterized in that: A rubber sleeve fixing bolt hole (5) is provided on the upper end surface of the rubber sleeve body (3), and a positioning pin (17) matching the rubber sleeve fixing bolt hole (5) is provided on the disassembly press head (18).
6. The device for disassembling and assembling a chassis swing arm rubber sleeve of a vehicle according to claim 5, characterized in that: The outer wall diameter of the disassembly press head (18) is smaller than the inner wall diameter of the support arm rubber sleeve ring, forming a clearance fit, and the outer wall length of the disassembly press head (18) is greater than or equal to the inner wall length of the support arm rubber sleeve ring.
7. The device for disassembling and assembling a chassis swing arm rubber sleeve of a vehicle according to claim 6, characterized in that: A disassembly press head flange (19) is provided on one end of the disassembly press head (18) away from the positioning pin (17), and the disassembly press head flange (19) extends toward the outer wall of the support base (11).
8. A device for disassembling and assembling a chassis swing arm rubber sleeve for a vehicle according to any one of claims 2 to 7, characterized in that: The mounting base comprises a support ring (20), a positioning ring (21) and a mounting base body (23); The support ring (20) is located on the end surface of the mounting base body (23) to form a mounting cavity (22), and the lower end surface of the support arm rubber sleeve ring is in contact with the support ring (20); The positioning ring (21) is connected to the outer edge of the support ring (20) and the other end of the positioning ring (21) extends outward.
9. The device for disassembling and assembling a chassis swing arm rubber sleeve of a vehicle according to claim 8, characterized in that: The mounting press head comprises a positioning cavity, and the diameter of the positioning inner wall (25) of the positioning cavity is consistent with the minor diameter of the rubber sleeve outer wall protection flange (3) of the rubber sleeve body (3).
10. The device for disassembling and assembling a chassis swing arm rubber sleeve of a vehicle according to claim 9, characterized in that: A positioning through hole is provided on the bottom wall of the positioning cavity for installing the press head. When the rubber sleeve body (3) is pressed, the positioning through hole is concentric with the rubber sleeve fixing bolt hole (5) provided on the upper end surface of the rubber sleeve body (3).